8y+7= y+21
Subtract y from both side
7y+7=21
Subtract 7 from both sides
7y = 14
Divide both sides by 7
Y=2 or A
Answer:
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Answer:
C is the answer according to me
50 cm = 1/2 m
3 m ÷ 1/2 m = 6
It will take him six days.